On Dec 1, 2005, at 10:53 AM, Jean Connelly wrote:
Regarding:
The system is a 3.06 GHz P4 running Fedora Core 3. The video
Card
is a NVidia 5200FX. For capture, all I have is a HD3000. I've
checked
that DMA is working on all the drives. I built mythtv from stable
source, 0.18.1. I used the following configure options:
--enable-xvmc --enable-opengl-vsync --enable-dvb
--dvb-path=/lib/modules/2.6.12- 1.1381_FC3smp/build/include
--disable-firewire --disable-joystick --disable-ivtv --enable-proc-opt
--disable-xvmc-vld --enable-opengl-vsync
I have close to an identical system; and I have what is probably
equivalent stuttering. HDTV (live or recorded) is totally
unplayable in myth. I have tried with and without opengl sync. I
can't find the xvmc option in the gui with this myth version to
disable xvmc for testing. Recorded 1080i plays badly (with
frequent pauses and never with audio sync) in mplayer with xvmc and
ffmpeg12mc and plays even worse without xvmc. I'll try transcoding
my latest sample clips to see if they are fine when played back at
standard resolutions.
I've got
3.06 GHz P4 (which is a 533Mhz FSB chip)
512 MB Ram
BE7-RAID mobo
Nvidia 5200FX
Fedora Core 3
Night before last's myth svn. No deinterlacing requested.
Prebuffer pauses all over the place.
I think what we really need is an hdtv playback test suite external
to myth to get better benchmarks on actual system performance.
From previous posts to the list ("well I got *my* P4 1.4Ghz system
to playback hdtv") I think that my system *should* be able to
playback hdtv without issue, but perhaps there are some motherboard
weaknesses or such that make it impossible.
Very frustrating.
Thanks!
Jean
HD plays well on my 2.4GHz P4/5200FX without XVMC. XVMC doesn't work
well with HD. I get stuttering with XVMC and HD. I am not using
OpenGL sync. The option for XVMC is the first screen of the TV
Settings->Playback menu (from memory...)
Curtis
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